Carbon sheet



Oct. 17, 1933. qsco 1,931,168

CARBON SHEET Filed Feb. 3, i930 INVENTbR .HZGOrdoTu Scoifi 2 ATTORNEY Patented Oct. 17, 1933 cannon sneer Herbert Gordon Scott, Whitestone Landing, N. Y., assignor to The Egry Register Company,

Dayton, Ohio Application February 3, 1930. Serial No. 425,692 7 1 Claim.

This invention relates to carbon or transfer paper such as used in manifolding work-sheets, and has for one object the provision of paper of the stated character wherein the carbons may 5 be quickly withdrawn or stripped from a pack of finished work-sheets without soiling the fingers.

.Another object of the invention is to provide carbon paper with non-soiling finger-holds and with clearances for the corners of work-sheets to be used with the carbons, and wherein the carbons may be inverted so that the useful life thereof is substantially increased.

Another object is to provide carbons of the i5 foregoing type which are capable of being stood on edge with interleaved work-sheets and jogged therewith to more quickly and perfectly bring the carbons into proper alignment with the work-sheets prior to typing, andin which the composite work pack may be satisfactorily introduced either lengthwise or sidewise around the platen of a typewriting machine.

Another object is to provide a carbon having a non-soiling margin of a color contrasting with at least the top work-sheet of a pack, and having means for indicating the position of the work-sheets in a typewriting machine, for instance, the approach of the bottom of the work pack as it advances in typing.

80 A further object is to provide a carbon of the stated character for use with continuous work forms of the type usually folded in zig-zag formation and torn off in sections along the folds as each of the forms is completed, and in 85 which each carbon of a torn of! section presents a non-soiling margin and cut-outs or notches adapted to clear the opposite corners of the forms.

Other objects and advantages of the inven- 40 tion will appear as the description proceeds.

In the accompanying drawing which forms apart of this specification:

Fig. 1 is a plan view of a carbon sheet made in accordance with the invention.

Fig. 2 is a view in perspective of a plurality of worksheets interleaved with carbons embody Fig. 5 shows a carbon of the type'shown in Fig. 4 interleaved with two continuous work webs folded in zig-zag form.

Fig. 6 is a plan view of a torn off work section of the web shown in Fig. 5 prior to stripping the carbons from the forms.

Referring at first to Fig. 1 of the drawing, the numeral 1 indicates generally a carbon sheet embodying my invention. The carbon 1 is cut away preferably at its four corners as at 2 and is provided with acarbonized area 3 so dis- 5 tributed that it leaves a pair of uncarbonized margins 4 at opposite sides of the sheet, whereby to provide non-soiling. finger-holds for manipulating the carbon in a manner to be explained later. The corners 2 of the carbon 3 may be cut off at an angle of approximately 45 degrees as illustrated, or they may be notched in any other suitable way to provide clearances at the corners 5 of work-sheets 6 as disclosed in Fig. 2. The carbons 3 are adapted to be arranged between the work-sheets 6 with one of the non-soiling margins 4 extending outward beyond the adjacent edges of the work-sheets 6 as will be readily observed at the left hand side of the work pack in Fig. 2, the outer edges of so the opposite margin 4 being aligned with the other edgc of the work-sheets 6. This arrangement provides a" substantial clearance at the corners 5. The advantages of the long and straight margins 4 will be apparent when the 35 work-sheets 6 and the carbons l are stood on edge to Jog the sheets into proper alignment with the carbons prior to typing. After completion of the typing operation, the composite pack of work-sheets and carbons is removed from the machine and the exposed margin 4 may be grasped with the forefinger and thumb of one hand, while one. set of the corners 5 of the work-sheets 6 are grasped likewise with the other hand, and then with a slight pull-of the hands in opposite directions, the carbons 1 are neatly extracted from the work-sheets 6 without soiling the fingers. It is also clear that the carbons 1 may be inverted to bring into use an unworn part of the carbonized area, and that the enclosed one of the margins 4, that is, the one formerly at the right hand side of the Fig. 2 pack may be exposed for grasping as in the case of the other margin described. Furthermore, either of the margins 4 may be extended at 105. either side of the work-sheets depending upon the preference of the typist or the character of the work to be done. In some cases it may be found advantageous to color the margins 4 so as to contrast with the top work-sheet, whereand handling the same in a typewriter.

ing cut-outs or notches 9 at diagonally oppositecorners so as to provide clearances for grasping the corners 10 of a work-sheet 11 assembled with the carbons, it being understood, of course, that aseries of such work-sheets 11 and carbons 8 are interleaved to form a composite pack, and that in Fig. 3 one of the work-sheets has been removed to more clearly illustrate the general arrangement of the carbons with respect to the work-sheets. It will be noted that the carbon sheet 8 includes uncarbonizedmargins -12 extending substantially the full length of the carbon at opposite sides thereof between the cutouts 9 and the other end of the carbon. There- .fore the carbons 8 may be jogged on edge with the interleaved work-sheets in the same manner as in the Fig. 1 example of the invention, which is an appreciable advantage in combination with the other novel features. The Fig. 3 carbon is also invertible and the margins may be extended at either side of the work-sheets by shifting to the right or the left. It will be seen that the work-sheets and carbons maybe inserted around the platen of a typewriting machine with facility. The long margins of this invention are also to be distinguished from the short tabs heretofore employed, and wherein the tabs had a tendency to curl and become otherwisetroublesome in assembling the work pack Indicators in the form of perforations 13 or otherwise may be provided in the margins for the purpose already explained.

For adapting the carbon for use with continuous work webs which the generally-folded in zig-zag formation and. torn off in sections along the folds after typing, a carbon sheet 14 (Fig. 4) is provided with a carbonized area 15, an uncarboni'z ed continuous margin 16 disposed along one edge of the sheet 14, and a series of recurrent notches or cutouts 17 arranged to intersect lines of detachment 18 of the carbon 14. Heretofore it has been the practice to cut off one of the corners of the forms to permit the carbons to project for graspin but this is objectionable in that the forms present a mutilated appearance due to the cut corners andfor that reason are not entirely satisfactory. By using the carbons of my invention all four corners of the forms remain intact and the appearance of the forms consequently meets the approval of the most critical. In Fig. 5 there is disclosed for illustration two work webs 19 having a carbon of the Fig. 4 type interleaved therewith and folded in zig-zag formation so that the forms 20 comprising the webs may be severed in complete sections along the folds after typing. Fig. 6 shows one of such form sections 20 after detachment from the webs 19. It will be observed that the uncarbonized margin 16 extends outward beyond the adjacent edge of the forms 20, and that the cut-outs 1'7 provide clearances at the two corners 21 of the forms 20 opposite to the margins 16, so that by grasping the margin 16 and either of the corners 21 the carbons may be easily stripped from the forms 20 by pulling in opposite directions. It is obvious that the work webs 19 may be of any number and interleavedwith the necessary carbons 14 to transfer the type impressions to all of the webs. In the interest of clearness I have illustrated only two webs and one carbon, but it is evident that the principle is the same irrespective of the number of webs and carbons used to make up a work pack. Where it is desirable to indicate approach of the botton of a mun-20, perforations or other suitable indicating means may be carried by the margin 16. Also, the margins 12 of Fig. 3, and the margins 16 of Fig. 4 may be colored to contrast with the top work-sheet.

In conclusion it is to be understood that while the'illustrated examples represent practical embodiments of the invention, it is not to'be construed as limited to the exact details set forth, since, manifestly, the same may be varied without departing from the spirit of the invention as defined in the appended claim:

I claim:

The combination with a work sheet of a carbon paper having its four comers cut away to provide clearance at the corners of the work sheet, said carbon paper having two uncarbonizedmargins oppositely disposed between the cut corners, the sum of the widths of the carbonized portion of the carbon paper and one of the uncarbonized-margins being-substantially equal to the width of the work sheet.

' IIERBERT GORDON SCO'I'I. 

